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### Question: How to know you have cri du chat?
### Response: In addition to symptoms listed above, the physical examination may show:
Inguinal hernia Diastasis recti (separated abdominal muscles) Low muscle tone Epicanthal folds, an extra fold of skin over the inner corner of the eye Incompletely or abnormally folded external ears
Genetic tests can show a missing part of chromosome 5. Skull x-ray may reveal an abnormal angle to the base of the skull.